PS263 Lecture Notes - Specific Volume, Homo Sapiens, Knockin
Document Summary
Organization of the nervous system i/ii1/9/2013 12:35:00 pm. Hierarchical organization of the human brain parallels the evolution of the brain: Squids and octopi have incredible nervous systems. As you go to species that have slightly more sophisticated features, they have larger brains. The size of the brain stem and cerebrum, expands as the sophistication of the organism increases. The earth is 4 billion years old and life inhabited the earth within half a billion of earth creation. In terms of having 50. 9% of present human characteristics, creatures occurred about 5 million years ago. How old is the earth in kansas/most of the us: 7000 years old. Gene are very important because they are operated on by all of these processes. Genes determine brain organization which then determines specific behaviours that can lead to reproduction. Genes proteins brains behaviour offspring (or not) Genes contribute an enormous amount to which you exhibit behaviours.
